Linda pressure 1991 - 989.3 983.6 988.1 - - - - - - 984.1 994.8 1992 987.7 995.5 986.7 - - - - - - - - - 1993 - 979.1 986.4 982.2 - - 974.0 - - - - - 1994 - 984.5 980.9 - - - - - - - - - 1995 980.8 982.4 993.0 985.6 983.1 990.2 1003.6 988.3 979.8 981.7 978.8 977.6 1996 986.0 990.7 985.5 978.7 985.8 982.6 982.7 988.6 989.5 972.2 987.1 985.4 1997 988.7 989.8 980.3 985.8 - - 979.9 977.7 - - - - 1998 - 962.5 963.3 957.1 964.0 958.6 961.8 960.3 969.9 961.7 955.8 963.8 1999 964.6 969.5 966.8 963.1 960.2 981.0 960.6 965.4 963.7 - - 956.8 2000 960.4 964.9 966.0 964.7 965.4 967.3 964.1 966.2 971.0 958.0 963.4 978.0 2001 973.3 970.2 967.3 961.2 966.8 964.4 969.1 964.8 960.8 954.7 958.2 959.1 2002 965.6 960.1 972.6 963.1 974.4 976.6 970.6 960.4 968.5 - - - 2003 - 990.3 986.0 - - 993.5 979.9 978.8 980.9 974.3 982.9 993.6 2004 985.4 995.1 985.5 979.7 - - - 983.3 983.7 - - 990.9 2005 987.0 980.0 984.4 980.8 981.4 - 979.1 975.0 - 969.0 976.6 992.7 2006 - 985.6 986.4 988.8 978.4 982.6 979.0 991.2 984.3 976.9 979.5 983.6 2007 986.8 984.0 990.7 985.6 987.4 986.8 997.7 980.1 978.9 982.9 982.4 976.6 2008 980.8 980.7 985.4 986.5 984.3 978.0 - - 972.8 - - - 2009 - 986.4 982.9 983.8 990.6 990.7 990.9 989.0 983.6 977.2 982.9 982.3 2010 995.5 990.6 985.4 981.1 982.7 977.5 970.0 974.1 980.9 974.9 974.2 988.7 2011 991.0 985.5 990.5 988.8 978.6 986.9 984.5 987.4 989.7 978.4 986.0 976.1 2012 977.4 985.1 983.5 981.9 - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - 985.3 2016 978.6 981.4 979.1 984.6 - 978.6 989.2 989.1 972.3 979.2 991.2 987.6 2017 992.3 988.7 989.2 981.8 976.5 981.9 979.4 975.4 978.0 - - - 2018 - 982.7 984.3 987.4 984.7 987.4 984.1 990.1 974.5 972.7 976.1 981.4 2019 985.4 987.4 985.5 982.4 986.0 972.9 988.7 982.8 972.7 982.5 991.3 994.0 2020 990.5 982.5 979.7 982.5 979.4 978.7 983.8 985.2 984.6 972.5 976.6 976.1 2021 980.8 978.5 987.0 981.7 983.8 982.2 988.5 989.3 975.1 979.8 975.1 973.9 2022 982.5 980.4 981.6 982.4 978.6 991.6 976.3 978.6 974.8 980.0 975.7 976.5 2023 978.1 984.1 986.1 992.5 982.1 989.5 985.1 987.6 980.3 976.6 982.4 978.2 2024 981.8 984.9 982.7 976.3 977.3 976.5 990.1 992.8 985.8 - - -